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Image forming apparatus and image stabilization control method in image forming apparatus

An image and pattern image technology, which is applied in the field of image forming device and image stabilization control in the image forming device, and can solve problems such as changes in image quality

Inactive Publication Date: 2016-10-05
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, even if there is only a slight deviation in gradation between the colors of the toners, the quality of the final image will vary

Method used

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  • Image forming apparatus and image stabilization control method in image forming apparatus
  • Image forming apparatus and image stabilization control method in image forming apparatus
  • Image forming apparatus and image stabilization control method in image forming apparatus

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Embodiment Construction

[0017] Embodiments of the present invention will be described in detail below with reference to the drawings. figure 1 It is a cross-sectional view illustrating an example of the overall configuration of an image forming apparatus according to an embodiment of the present invention. Such as figure 1 As shown, the image forming apparatus according to the present embodiment is a multifunction peripheral (MFP: Multifunction Peripheral) of the four-series system. The image forming apparatus has: an image forming section 1 that outputs image information as an output image called, for example, a hard copy or a printout; and a paper supply section 2 that supplies paper of an arbitrary size for image output to the image forming section 1 (output medium). ); and an image reading unit 3 that is a scanner that acquires, as image data, image information that is an object of image formation in the image forming unit 1 from an object (hereinafter referred to as a document). The image read...

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Abstract

The invention provides an image forming device and an image stablization control method in the image forming device. The image stabilization information storage part stores a definition table. The image concentration of the predetermined images is defined as an adjustment value of a developing contrast degree potential of the difference of the developing bias potential and electrified bias level. The image stabilization information storage part also stores an alter upper limit value of developing contrast degree level in image stabilization control in a printing task performing process; and a last-time predetermined value of developing contrast degree level. The developing contrast degree level adjusting part adjusts developing contrast degree level to a new adjustment value not surpass the upper limit value in a condition that the difference of the adjustment value obtained based on the image concentration and the last-time predetermined value surpasses the alter upper limite value.

Description

technical field [0001] Embodiments of the present invention relate to an image forming apparatus and an image stabilization control method in the image forming apparatus. Background technique [0002] In recent years, there has been an increasing demand for higher image quality of image forming apparatuses. In addition, the popularization of color image forming apparatuses is also advancing. A color image forming apparatus, for example, successively superimposes four-color toners of Y (yellow), M (magenta), C (cyan), and K (black) on a transfer object, thereby expressing full color on the transfer object. color image. Therefore, even if there is only a slight deviation in gradation between the colors of the toners, the image quality of the final image will vary. It is also very important to always keep the gradation constant in response to temporal changes and environmental changes in the image forming apparatus. Therefore, in order to maintain the gradation, various ima...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/00G03G15/01
Inventor 福山广高三田村浩通
Owner KK TOSHIBA